This beautiful image of the Keyhole Nebula, located within the larger Carina Nebula, illustrates Hubble's unprecedented power to resolve fine detail. Space images take on the vibrancy of family snapshots, with none of the grainy, two-dimensional quality often seen in telescope images of the past. "You have enough information that you can actually perceive 3-D structures in the nebulae," says Space Telescope Science Institute (STSCI) astronomer Nolan Walborn. "That is one of the advantages of Hubble that I don't think was necessarily foreseen."